Dropout: DLink DI-614 and Netgear MA521

Bootup is sometimes slow, and if the MA521 Configuration Utility icon
doesn't show up in the taskbar, there's no Internet.

Often, I'll be working away and suddenly there's no Internet. I hit
the network icon, and select repair. A long time elapses, and then
the popup notification box states that the repair operation failed,
and that I couldn't obtain an IP address.

I've run WinSockXPFix.exe which is supposed to fix this, and it will
work for awhile after that, but then the same thing happens again.

Any insight would be appreciated. My 614 has two antennas.